* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-dark: #1a1a2e;
            --secondary-dark: #16213e;
            --accent-red: #c1121f;
            --accent-gold: #fca311;
            --accent-blue: #0a9396;
            --text-light: #f8f9fa;
            --text-gray: #adb5bd;
            --border-color: #2d3748;
            --card-bg: #222831;
            --transition: all 0.3s ease;
            --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
            --radius: 8px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-light);
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--secondary-dark) 100%);
            min-height: 100vh;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: rgba(26, 26, 46, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid var(--accent-red);
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .logo a {
            font-family: 'Impact', 'Arial Black', sans-serif;
            font-size: 2.2rem;
            color: var(--accent-gold);
            text-decoration: none;
            letter-spacing: 2px;
            text-transform: uppercase;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
            transition: var(--transition);
        }
        .logo a:hover {
            color: var(--accent-red);
            transform: scale(1.05);
        }
        .logo .domain {
            font-size: 0.8rem;
            color: var(--text-gray);
            display: block;
            letter-spacing: 1px;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: var(--text-light);
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--radius);
            transition: var(--transition);
            position: relative;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--accent-gold);
            background-color: rgba(252, 163, 17, 0.1);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--accent-red);
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after {
            width: 80%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: rgba(22, 33, 62, 0.8);
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
        }
        .breadcrumb a {
            color: var(--accent-blue);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--accent-gold);
            text-decoration: underline;
        }
        .breadcrumb .separator {
            margin: 0 0.5rem;
            color: var(--text-gray);
        }
        .breadcrumb .current {
            color: var(--text-light);
            font-weight: 600;
        }
        .hero {
            padding: 4rem 0 2rem;
            text-align: center;
            background: radial-gradient(circle at center, rgba(10, 147, 150, 0.1) 0%, transparent 70%);
        }
        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            color: var(--accent-gold);
            text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.8);
            line-height: 1.2;
        }
        .hero .subtitle {
            font-size: 1.3rem;
            color: var(--text-gray);
            max-width: 800px;
            margin: 0 auto 2rem;
        }
        .search-container {
            max-width: 600px;
            margin: 2rem auto;
            padding: 1rem;
        }
        .search-form {
            display: flex;
            box-shadow: var(--shadow);
            border-radius: 50px;
            overflow: hidden;
            background: var(--card-bg);
            border: 2px solid var(--border-color);
        }
        .search-input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: none;
            background: transparent;
            color: var(--text-light);
            font-size: 1.1rem;
        }
        .search-input::placeholder {
            color: var(--text-gray);
        }
        .search-button {
            background: var(--accent-red);
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 600;
        }
        .search-button:hover {
            background: #a50e18;
        }
        main {
            padding: 2rem 0;
        }
        .article-content {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 3rem;
            box-shadow: var(--shadow);
            margin-bottom: 3rem;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-bottom: 1.5rem;
            margin-bottom: 2rem;
            border-bottom: 2px solid var(--border-color);
            flex-wrap: wrap;
            gap: 1rem;
        }
        .update-time {
            color: var(--accent-blue);
            font-size: 0.9rem;
        }
        .author {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--text-gray);
        }
        .author i {
            color: var(--accent-gold);
        }
        h1, h2, h3, h4 {
            margin: 2rem 0 1rem;
            color: var(--accent-gold);
            line-height: 1.3;
        }
        h1 { font-size: 3rem; }
        h2 { font-size: 2.2rem; border-left: 5px solid var(--accent-red); padding-left: 1rem; }
        h3 { font-size: 1.8rem; }
        h4 { font-size: 1.5rem; color: var(--accent-blue); }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            color: var(--text-light);
            font-weight: 300;
            margin-bottom: 2rem;
            padding: 1.5rem;
            background: rgba(10, 147, 150, 0.1);
            border-radius: var(--radius);
            border-left: 4px solid var(--accent-blue);
        }
        .highlight {
            background: linear-gradient(90deg, transparent 0%, rgba(252, 163, 17, 0.15) 50%, transparent 100%);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin: 2rem 0;
            border: 1px solid rgba(252, 163, 17, 0.3);
        }
        .key-point {
            background: rgba(193, 18, 31, 0.1);
            border-left: 4px solid var(--accent-red);
            padding: 1.2rem;
            margin: 1.5rem 0;
        }
        blockquote {
            font-style: italic;
            border-left: 5px solid var(--accent-gold);
            padding-left: 2rem;
            margin: 2.5rem 0;
            color: var(--text-gray);
            font-size: 1.2rem;
        }
        strong {
            color: var(--accent-gold);
            font-weight: 700;
        }
        em {
            color: var(--accent-blue);
        }
        a.content-link {
            color: var(--accent-blue);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: var(--transition);
        }
        a.content-link:hover {
            color: var(--accent-gold);
            text-decoration: none;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            margin: 2.5rem auto;
            display: block;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: transform 0.5s ease;
            border: 3px solid var(--border-color);
        }
        .article-image:hover {
            transform: scale(1.02);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-gray);
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .interactive-section {
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.8) 0%, rgba(22, 33, 62, 0.9) 100%);
            border-radius: var(--radius);
            padding: 2.5rem;
            margin: 3rem 0;
            border: 2px solid var(--accent-red);
        }
        .interactive-section h3 {
            text-align: center;
            margin-top: 0;
            color: var(--accent-red);
        }
        .rating-form,
        .comment-form {
            display: grid;
            gap: 1.5rem;
            margin-top: 2rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-group label {
            font-weight: 600;
            color: var(--accent-gold);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            padding: 1rem;
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            background: var(--primary-dark);
            color: var(--text-light);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--accent-blue);
            box-shadow: 0 0 0 3px rgba(10, 147, 150, 0.3);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            cursor: pointer;
            justify-content: center;
            margin: 1rem 0;
        }
        .star-rating .star {
            color: var(--text-gray);
            transition: var(--transition);
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: var(--accent-gold);
            transform: scale(1.2);
        }
        .submit-button {
            background: linear-gradient(135deg, var(--accent-red) 0%, #a50e18 100%);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--radius);
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-top: 1rem;
        }
        .submit-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(193, 18, 31, 0.4);
        }
        .site-footer {
            background: var(--primary-dark);
            border-top: 2px solid var(--accent-red);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-section h4 {
            color: var(--accent-gold);
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: var(--text-gray);
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .footer-links a:hover {
            color: var(--accent-blue);
            padding-left: 0.5rem;
        }
        .friend-links {
            background: rgba(10, 147, 150, 0.1);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin: 2rem 0;
        }
        .friend-links h5 {
            color: var(--accent-gold);
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }
        friend-link {
            display: inline-block;
            margin-right: 1rem;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: var(--accent-blue);
            text-decoration: none;
            padding: 0.5rem 1rem;
            background: rgba(10, 147, 150, 0.2);
            border-radius: 20px;
            transition: var(--transition);
            font-size: 0.9rem;
        }
        friend-link a:hover {
            background: var(--accent-blue);
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid var(--border-color);
            color: var(--text-gray);
            font-size: 0.9rem;
        }
        .copyright a {
            color: var(--accent-blue);
            text-decoration: none;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.8rem; }
            h2 { font-size: 2rem; }
            .hero h1 { font-size: 2.8rem; }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
                order: 1;
            }
            .logo {
                order: 0;
                flex-grow: 1;
            }
            .main-nav {
                order: 2;
                width: 100%;
                display: none;
                margin-top: 1rem;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                width: 100%;
            }
            .main-nav a {
                display: block;
                padding: 1rem;
                border-bottom: 1px solid var(--border-color);
            }
            .main-nav a::after {
                display: none;
            }
            .hero h1 {
                font-size: 2.3rem;
            }
            .article-content {
                padding: 1.5rem;
            }
            .interactive-section {
                padding: 1.5rem;
            }
            .footer-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.9rem;
            }
            .subtitle {
                font-size: 1.1rem;
            }
            h2 { font-size: 1.7rem; }
            h3 { font-size: 1.5rem; }
            .search-form {
                flex-direction: column;
                border-radius: var(--radius);
            }
            .search-input,
            .search-button {
                width: 100%;
                border-radius: 0;
            }
            .search-button {
                padding: 1rem;
            }
        }
        @media print {
            .site-header,
            .search-container,
            .interactive-section,
            .site-footer,
            .breadcrumb,
            .hamburger {
                display: none;
            }
            body {
                background: white;
                color: black;
                font-size: 12pt;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
            a {
                color: black;
                text-decoration: underline;
            }
            .article-image {
                max-width: 100%;
                border: 1px solid #ccc;
            }
        }